Completely breaks Firefox and Firefox even tells me that the extension is slowing down my browser. It makes websites completely unusable for a few minutes each time a page loads.. Please fix this.

And this seriously bugs under Firefox 135 in terms of colors.

It slows down Firefox now. So sad

Something's broken with this addon, it used to work perfectly, now it's slowing down Firefox.
Please fix!

used for a long time, has had performance issues over its lifespan but for ~month or so the performance is horrendous. causes most big-name websites (reddit, youtube, google) to completely seize up and load extremely slow, currently making this add-on completely unusable. i will edit the review if this gets fixed but currently this just straight up breaks your browser

Websites load slower than far too slow. And after updates performance seems to even get worse over time instead of better. This add-on is 110% unusable.

Slows down websites where dark mode is already enabled, detects darkmode enables it anyway on top of dark mode causing memory leaks to.

Gave them benefit of the doubt for the past month, but still no fix in sight for the massive performance issues on sites like Reddit & YT, none of the filtering methods work to stop the extension from using up to 32gb of ram suddenly.
Stuck using it since there's no real good alternative.

this extension is causing websites to not load properly in firefox (reddit. i will be using a different dark reader till it gets fixed

recently make Firefox slow down

There was a recent update or something because this Add-on is making my Firefox super slow. I feel like for some reason there seems to be a memory leak because Firefox is using soo much RAM when Dark Reader is enabled. Task manager is telling me my RAM, 16GB, is almost maxed with only firefox and a couple tabs. There has to be a bug or something, I get a popup from Firefox asking me if I want to disable the addon because it is making the browser super slow. I have to disable it until this gets fixed. I love it when it works, but not right now

The add-on seems to be causing extreme slowdowns in Firefox. Whenever I open a new website, it slows down for over 5 seconds while Firefox displays a message of it being caused by "Dark Reader".

Faulty extension, slows down a browser.

I normally love this extension, but it's now making firefox EXTREMELY slow and laggy, overloading resources and causing pages to take 30 seconds or more to load. Firefox also prompted me to stop the extension on several occasions because it detected it was slowing down the browser

This add-on is constantly phoning home, on all browsers & engines. I saw this in my Pi-hole - even when you disable the buried sync option. I haven't looked up the payload or code but beside the tracking it also displays some news/donation adverts in front/overlaying the config options.

Makes firefox lag somehow now

Had to inactive it since i was slowing the brownser and showing a firefox's pop up suggesting to stop the add-on, what i've done.

Used to work fine, now makes the browser lag and pop up issues.

Doesn't work on WordPress dashboard when editing a post or page inside the block editor.

Since latest update the add-on is crashing my tabs. When it doesn't crash my tabs it's extremely slow and uses a lot of CPU.

I agree with what MrTwisby said in his review. FireFox moves like a slug with Dark Reader Ext active. I have used it for a long time but it is so bad now, unstalling it.